JP2011190068A - Method for repairing elevator door opening/closing device, and elevator door opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To execute the work without stopping an elevator for a long period by successively executing the work in a time zone of less traffic demand such as a holiday and a night time in a repair work in which door opening/closing devices on a car side and a landing side are replaced from an existing one to a new one. <P>SOLUTION: A method for repairing an elevator door opening/closing device includes a step of replacing an existing car side door opening/closing device 51 by a new car side door opening/closing device 62, and installing a temporary car engagement piece 63 to be engaged with both an existing landing engagement roller and a new landing engagement roller as a car engagement piece, a step of withdrawing an existing landing side door opening/closing device 50, and installing a new landing side door opening/closing device 60 so that the landing engagement roller is at the engaging position with the temporary car engagement piece 63, and a step of replacing the temporary car engagement piece 63 by a permanent car engagement piece 64 when replacement of all the landing side door opening/closing devices is completed for every floor. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method and apparatus for repairing an elevator door opening and closing device.

Elevator equipment is regularly maintained and inspected, but refurbishment work may be performed to replace the equipment with new ones in order to age the equipment and improve its performance. One type of renovation work is a renovation work for door opening and closing devices. In this construction, the structure of the existing door opening / closing device is different from that of the new door opening / closing device. Therefore, the cage door opening / closing device and the landing side door opening / closing device have the existing ones and the new ones. Those having a structure equivalent to each other must be used.
For this reason, once the door opening / closing device has been repaired, the elevator cannot be operated until the car and all the landing door opening / closing devices have been repaired. There was a problem that the user had to pause and caused a great inconvenience to the user. Moreover, it is a particularly serious problem in a small-scale building where only one elevator is installed, and has been a factor that hinders the repair work of the elevator door opening and closing device.

In order to solve this problem, there has been proposed a renovation method in which the elevator is paused for a short period of time during periods when there is little use of the elevator, such as on holidays or at night, and the door opening / closing device is sequentially replaced. In an example (refer to Patent Document 1) showing a method of repairing the device, the door opening and closing device and the door body of the car and the landing are replaced. FIG. 4 is a flowchart showing an outline of the renovation work, FIG. 5 is a view of the existing landing-side door opening / closing device viewed from the hoistway side, and FIG. 6 is a view of the landing-side door opening / closing device in the middle of the renovation work viewed from the hoistway side. It is.

In FIG. 4, A shows a state before the repair, B shows an intermediate stage during the repair, and C shows a state after the repair.
First, in the process of A → B, the existing landing-side door opening / closing devices 50-1 to 50-N on each floor are replaced with new landing-side door opening / closing devices 60-1 to 60-N, respectively. The landing-side door opening / closing devices 60-1 to 60-N are deactivated, and the existing landing-engaging elements 61-1 to 61-N are additionally provided in the new landing-side door opening / closing devices 60-1 to 60-N. It links with the existing car side door opening and closing device 51.
Next, in the process of B → C, the existing car side door opening / closing device 51 is replaced with the new car side door opening / closing device 62, and the new landing side door opening / closing devices 60-1 to 60-N are operable. The existing landing engaging members 61-1 to 61-N are made inoperative or removed.

  Next, the state before repair corresponding to A will be described with reference to FIG. 1 is a header fixed to a building wall (not shown), 2 is a door guide rail fixed to the header 1, 3 is a pair of landing doors, 4 is guided by the door guide rail 2 and suspends the landing door 3 The lowered door hanger, 5 is a cord drive device that moves the left and right landing doors 3 in conjunction with each other, and 6 is a landing engagement member, which is pivotally attached to the landing door 3 by a shaft 6a. The engagement roller 6b is pivotally attached, and the rotation amount of the landing engagement element 6 is limited by a stopper (not shown).

  7 is a door lock pivotally attached to the door hanger 4 by a shaft 7a, 8 is a switch box fixed to the header 1, 8a is a locking piece provided on the switch box 8, and is engaged with the door lock 7. As a result, the landing door 3 is locked. Reference numeral 9 denotes a connecting rod which is attached to the other end of the landing engagement element 6 by a nut 10 and is adjusted to the door lock 7 by a nut 10 using a male screw cut at the lower end. A landing-side door opening / closing device 50 is configured by the landing engaging elements 6 to nuts 10. Reference numeral 30 denotes a car engaging member which is a part of the existing car side door opening / closing device 51.

  The operation of this apparatus is as follows. When the landing engagement roller 6b is clamped by the car engagement member 30, the landing engagement member 6 rotates clockwise around the shaft 6a, the connecting rod 9 is pushed up, and the door lock 7 Is lifted upward to disengage from the locking piece 8a, and the landing door 3 is unlocked.

Next, an intermediate stage state during the repair corresponding to B will be described with reference to FIG. In the figure, the same reference numerals as those in FIG. 5 denote the same components.
In the figure, 11 is a new landing door, 12 is a new door hanger, 13 is a bracket for fixing the existing switch box 8 to the header 1, 14 is a bracket for pivotally mounting an existing door lock 7, 15 Is a bolt that fixes the bracket 14 to the door hanger 12. 16 is a slightly longer connecting rod having the same structure as that of the existing product mounted in place of the existing connecting rod 9, and the lower end is attached to the existing landing engaging member 6 by the nut 10 and the upper end is attached to the existing door lock 7 in an adjustable manner. ing. These existing hall engaging elements 6 to switch box 8, nut 10, bracket 13 to connecting rod 16 constitute an existing hall engaging element 61 and the like.
Reference numeral 17 denotes a new door lock, which is pivotally attached to the new door hanger 12 by a shaft 17a and has landing engagement rollers 17b and 17c. Reference numeral 18 denotes a new switch box, which is attached to the header 1 so as to be adjustable in the vertical direction by a long hole 19 and a bolt 20.

  In the state shown in FIG. 6, the switch box 18 is attached at the lowered position, so that the door lock 17 does not engage with the locking piece 18 a of the switch box 18 even in the closed door temple. The door lock 17 to the bolt 20 constitute a new landing-side door opening / closing device 60. Although not shown, the door lock 17 has a structure that does not rotate counterclockwise about the shaft 17a beyond the position shown in FIG. Reference numeral 31 denotes a car engagement element which is a part of a new car-side door opening / closing device 62 when the car-side door opening / closing device is replaced with a new device.

With this configuration, the unlocking and door opening / closing operations are performed in exactly the same way as the landing before renovation described with reference to FIG. 5 by the car engaging element 30 which is a part of the existing car side door opening / closing device 51. Therefore, even if the hall before the renovation (FIG. 5) and the middle stage of the middle of the renovation (FIG. 6) are mixed, the operation of the elevator and the door opening / closing operation are possible.
Accordingly, since the landing work can be performed independently for each floor, the work can be performed even if the elevator stop period is a short period of one to two days on the weekend.

Furthermore, when the existing car-side door opening / closing device 51 is replaced with the new car-side door opening / closing device 62 after completion of the replacement work for all floor floors as shown in FIG. 6, the new switch box 18 on each floor is simultaneously extended. After moving upward along the hole 19 and fixing the door lock 17 and the locking piece 18a to the position where the new door lock 17 and the locking piece 18a can be engaged (the two-dot chain line position in FIG. 6), the connecting rod 16 is used using the lower threaded portion. Then, the door 10 is moved upward by the nut 10 and fixed at a position where the existing door lock 7 is disengaged from the locking piece 8a (the two-dot chain line position in FIG. 6).
In this case, there is no time-consuming work such as adding or replacing new parts in the adjustment work of the landing-side door opening / closing device and landing engagement element on each floor. Even if the number is large, processing can be performed in a short time. Note that the existing landing engagement member 61 including the existing door lock 7 and the landing engagement member 6 is left as it is because it does not become an obstacle to the operation of the elevator, but may be removed.

Japanese Patent Publication No. 5-17156

However, in the prior art, in the process of A → B, the existing hall engaging element 61 or the like must be provided on the new hall door 11, so that brackets 13 and 14, a long connecting rod 16, etc. are required for all floors. There is a problem of becoming.
Furthermore, in the process of B → C, when replacing the existing car side door opening / closing device 51 with the new car side door opening / closing device 62, it is necessary to simultaneously adjust the landing engagement elements and the like on all floors. Although this work is a simple work, there is a problem that when the number of stops is high, such as in a high-rise building, the work requires a certain amount of time.

In the present invention, when the car engagement element of the elevator car side door opening / closing device engages with the landing engagement roller of the landing side door opening / closing device, the lock on the landing side door is released, and the car side and landing side doors are In the method of refurbishing a door opening / closing device that opens and closes from an existing device to a new device, the existing car side door opening / closing device is replaced with a new car side door opening / closing device, and the existing landing staff is used as a car engaging element. A first step of installing a temporary car engagement element that can be engaged with both the combined roller and the new hall engagement roller; and thereafter, removing the existing landing side door opening / closing device, and the temporary car engagement element; When the second step of installing the new landing-side door opening / closing device so that the landing engaging roller comes to the engaging position and the replacement of the landing-side door opening / closing device for all floors is completed, the temporary car A step of replacing the basket engaging member of the set the zygote is a repair method of an elevator door apparatus comprising the.

  In addition, the present invention also relates to an elevator car-side door opening / closing device that is engaged with a landing-engaging roller of a landing-side door opening / closing device, whereby the landing-side door is unlocked, and the car-side and landing-side doors are released. In the method of refurbishing the door opening and closing device that opens and closes in conjunction with the existing device from the existing device, the car engagement element of the existing car side door opening and closing device is connected to the existing landing engagement roller and the new landing engagement roller. A first step of replacing the temporary car engaging element that can be engaged with both, and then removing the existing landing side door opening / closing device, and the landing engaging roller comes to a position to engage with the temporary car engaging element. As described above, the second step of installing the new landing-side door opening / closing device and the first step of the existing car-side door opening / closing device when the replacement of the landing-side door opening / closing device is completed for all floors. Take A third step of replacing the example non apparatus, a repair method of an elevator door apparatus comprising the.

  The present invention further includes a step of replacing the temporary car engagement element with a permanent car engagement element when the exchange of the landing-side door opening / closing device is completed for all floors in the above process. This is a method for repairing a door opening and closing device.

  In addition, the present invention also relates to an elevator car-side door opening / closing device that is engaged with a landing-engaging roller of a landing-side door opening / closing device, whereby the landing-side door is unlocked, and the car-side and landing-side doors are released. In each device, there are a hall with an existing hall engaging roller on each floor and a hall with a new hall engaging roller on each floor. An elevator door opening and closing device comprising an engagement element that can be engaged with both a combination roller and a new hall engagement roller.

  According to the present invention, it is not necessary to install an existing landing engagement element or the like on a new landing door, and there is no need for a bracket or a long connecting rod on the floor of all floors. However, there are few temporary parts.

It is a flowchart which shows the outline of the repair work by embodiment of this invention. It is the figure which looked at the landing side door opening / closing device of the repair work middle stage by embodiment of this invention from the hoistway side. It is the figure which looked at the landing side door opening / closing device of the repair work middle stage by embodiment of this invention from the hoistway side. It is a flowchart which shows the outline of the conventional repair work. It is the figure which looked at the conventional existing landing side door opening / closing apparatus from the hoistway side. It is the figure which looked at the landing side door opening / closing device of the conventional middle stage of renovation work from the hoistway side.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a flowchart showing an outline of renovation work according to the present embodiment, and FIGS. 2 and 3 are views of a landing-side door opening / closing device at a middle stage of renovation work as seen from the hoistway side. The same reference numerals as those in FIGS. 4 to 6 denote the same components.

In FIG. 1, A, like FIG. 4, shows a state before the repair, and the details thereof are the same as those described in FIG. B shows an intermediate stage in the middle of the repair, and C shows a state after the repair.
First, in the process of A → B, the existing car side door opening / closing device 51 is replaced with a new car side door opening / closing device 62. At this time, a temporary car engaging element 63 is installed as the car engaging element. The temporary car engagement element 63 can be engaged with an existing landing engagement roller and can be engaged with a new landing engagement roller.
Next, in the process of B → C, the existing landing-side door opening / closing devices 50-1 to 50-N on each floor are sequentially replaced with new landing-side door opening / closing devices 60-1 to 60-N. When the hall-side door opening / closing device on all floors is replaced with a new device, the temporary car engaging member 63 of the car-side door opening / closing device is replaced with the main car engaging member 64.

Next, an intermediate stage state during the repair corresponding to B will be described with reference to FIG. In the figure, the same reference numerals as those in FIG. 5 denote the same components.
In the figure, 63 is a temporary car engagement element provided in place of the main car engagement element 64 of the new car side door opening and closing device 62, and has a length that can be engaged with the existing hall engagement roller 6b. Yes.
FIG. 3 is a diagram showing a state during the transition from B to C, in which the landing door 11 and the landing-side door opening / closing device 60 are replaced with new ones. The same reference numerals as those in FIGS. 2 and 6 denote the same components. The temporary car engagement element 63 is engaged with the landing engagement rollers 17a and 17b indicated by solid lines at the landing where the landing-side door opening / closing device is replaced with a newly-installed device, and the landing-side door opening / closing device remains installed. The floor is configured to engage with a landing engagement roller 6b indicated by a broken line.
Therefore, when the landing engagement rollers 17a and 17b are installed, the landing engagement rollers 17a and 17b are installed so as to overlap with or close to the existing landing engagement rollers 6b in plan view. .

When the existing hall-side door opening / closing device 50 on all floors is replaced with the new hall-side door opening / closing device 60, the temporary car engaging element 63 of the car is replaced with the main car engaging element 64, and the operation is completed.
Although the main car engagement element 64 is not shown, it is engaged with the landing engagement rollers 17a and 17b and is the same as the new car engagement element 31 shown in FIG.

  In the above description, an example of replacing the existing landing-side door opening / closing device 50 having one landing-engaging roller 6b with a new landing-side door opening / closing device 60 having two landing-engaging rollers 17b, 17c is shown. However, the present invention is not limited to this, and the existing landing-side door opening / closing device with two engaging rollers can be replaced with a new landing-side door opening / closing device with two engaging rollers, or an existing landing-side door with two engaging rollers. The present invention can be applied to other combinations as long as an engagement roller is used for the landing-side door opening / closing device, such as replacing the opening / closing device with a newly-installed landing-side door opening / closing device with one engagement roller.

In the above description, in the process of A → B, the existing car side door opening / closing device 51 is replaced with the new car side door opening / closing device 62, and the car engaging element is the temporary car engaging element 63. The side door opening / closing device 51 can be left as it is, and only the car engaging element can be used as the temporary car engaging element 63. Then, when the hall-side door opening / closing device on all floors is replaced with a new device, the existing car-side door opening / closing device among the existing car-side door opening / closing devices is replaced.
In the renovation work of the present invention, replacement parts are often transported using a car, so if the car side door opening and closing device is replaced at an early stage, the new car side door opening and closing device such as a door panel will not be damaged. Although it needs to be cured, if the car-side door opening / closing device is replaced at the final stage as in this embodiment, there is an effect that the curing of the car becomes unnecessary.

  Further, in the above-described embodiment, the temporary car engagement element is replaced with the permanent car engagement element, but there is no problem even if the temporary car engagement element is left as it is.

  In the above embodiment, the door opening / closing device and the landing door are replaced together, but it is needless to say that only the device directly related to the car and landing door engagement may be replaced.

6 Existing landing engagement element 6b Existing landing engagement roller 7 Existing door lock 17 New door lock 17b, 17c New landing engagement roller 50 Existing landing side door opening / closing device 51 Existing car side door opening / closing device 60 New installation Landing side door opening and closing device 62 Newly installed car side door opening and closing device 63 Temporary car engaging element 64 Main car engaging element

Claims (4)

When the car engagement element of the elevator car side door opening / closing device engages with the landing engagement roller of the landing side door opening / closing device, the landing side door is unlocked, and the car side and landing side door are interlocked to open and close. In the method of refurbishing the door opening and closing device from the existing device to the new device,
The existing car side door opening / closing device is replaced with the new car side door opening / closing device, and a temporary car engaging member capable of engaging with both the existing hall engaging roller and the new hall engaging roller is installed as the car engaging member. A first step;
Thereafter, the second step of removing the existing landing-side door opening and closing device and installing the new landing-side door opening and closing device so that the landing engagement roller comes to a position to be engaged with the temporary car engagement element,
When the replacement of the landing-side door opening / closing device for all floors is completed, the step of replacing the temporary car engagement element with a permanent car engagement element;
A method of repairing an elevator door opening and closing device characterized by comprising: When the car engagement element of the elevator car side door opening / closing device engages with the landing engagement roller of the landing side door opening / closing device, the landing side door is unlocked, and the car side and landing side door are interlocked to open and close. In the method of refurbishing the door opening and closing device from the existing device to the new device,
A first step of replacing the car engagement element of the existing car side door opening and closing device with a temporary car engagement element that can be engaged with both the existing hall engagement roller and the new hall engagement roller;
Thereafter, the second step of removing the existing landing-side door opening and closing device and installing the new landing-side door opening and closing device so that the landing engagement roller comes to a position to be engaged with the temporary car engagement element,
When replacement of the landing-side door opening / closing device is completed for all floors, a third step of replacing the existing car-side door opening / closing device that has not been replaced in the first step;
A method of repairing an elevator door opening and closing device characterized by comprising:   3. The elevator door opening / closing according to claim 1, further comprising a step of replacing the temporary car engagement element with a permanent car engagement element when replacement of the landing-side door opening / closing device is completed for all floors. 4. How to repair the equipment. When the car engagement element of the elevator car side door opening / closing device engages with the landing engagement roller of the landing side door opening / closing device, the landing side door is unlocked, and the car side and landing side door are interlocked to open and close. In the device to
Each floor has a hall with an existing hall engaging roller and a hall with a new hall engaging roller, and the car-side door opening / closing device has the existing hall engaging roller and the new hall engaging roller. An elevator door opening and closing device comprising an engagement element that can be engaged with both.

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